Structure and geometry of water adsorbed on the MgO(100) surface

被引：92

作者：

Xu, C

Goodman, DW

机构：

[1] Department of Chemistry, Texas A and M University, College Station

来源：

CHEMICAL PHYSICS LETTERS | 1997年 / 265卷 / 3-5期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0009-2614(96)01452-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Adsorption of D2O on the MgO(100)/Mo(100) surface has been studied using temperature programmed desorption (TPD), reflection absorption infrared spectroscopy (RAIRS) and low energy electron diffraction (LEED). The epitaxially grown MgO(100) films show virtually identical water TPD spectra as the single crystal MgO(100) surface. The first, chemisorbed layer is adsorbed with the plane of the molecule nominally parallel to the surface. A (3 x 2) LEED pattern with missing spots at (0, 1/2) was also observed. Based on the LEED and RAIRS results, a real space structure for the D2O adsorption on the MgO(100) surface is proposed. This structure implies an absolute coverage of 0.67 ML (D2O molecules per Mg cation) for the first, chemisorbed layer.

引用

页码：341 / 346

页数：6

共 19 条

[1]

AURTHUR DA, 1991, J CHEM PHYS, V95, P8521

[2] REORIENTATION OF CHEMISORBED WATER ON NI(110) BY HYDROGEN-BONDING TO 2ND-LAYER [J].